1131 results about "Liquid circulation" patented technology

The invention discloses an intelligent marinating regulation and control method for leisure old marinated claw snacks based on multi-source sensing, which comprises the following steps: acquiring environmental parameters and material parameters in a marinating process through a multi-source sensor, and analyzing texture change of old marinated claws by utilizing a collagen triple-helix structure denaturation kinetic model; a dynamic time warping smell recognition algorithm is adopted to recognize a smell change stage, a color change rule is analyzed through a Maillard reaction kinetics coupling model, multiple parameters are fused to establish an incidence matrix, and the heating power of marinating equipment, the marinating liquid circulation rate and the ventilation quantity are regulated and controlled according to the matrix. According to the method, multi-parameter collaborative monitoring and deep analysis are realized, the regulation and control accuracy and the automation level are improved, the defects that a traditional method is insufficient in key component change analysis and poor in smell recognition and multi-parameter fusion collaboration are overcome, the product quality stability is guaranteed, and the standardized production requirement is met.

The utility model relates to the technical field of heat dissipation, and discloses a chip dual heat dissipation structure. The chip double-heat-dissipation structure comprises a vapor chamber which is used for being packaged on a chip and conducting heat of the chip, a middle frame is packaged on the top face of the vapor chamber, an upper cover is packaged on the middle frame, and a water inlet and a water outlet are formed in the left side and the right side of the top face of the upper cover. A plurality of integrally-formed heat dissipation fins are arranged on the bottom face of the upper cover, the bottoms of the heat dissipation fins abut against the top face of the vapor chamber, and a plurality of flow channels used for circulation of cooling liquid are formed among the heat dissipation fins. According to the dual-heat-dissipation structure of the chip, the heat of the vapor chamber is dissipated through the heat dissipation fins packaged on the vapor chamber and the cooling liquid circulating on the top cover, so that the heat absorbed by the vapor chamber can be transferred out at the first time, and the heat dissipation effect of the vapor chamber on the chip is improved.

The invention discloses a circulation system of aluminum wire drawing liquid, and relates to the technical field of metal processing, the circulation system comprises: a wire drawing device, which is provided with an immersion liquid box and an outlet die, and after entering the immersion liquid box for drawing, an aluminum rod is sized from the outlet die for molding; a filter is arranged in the wire drawing liquid pool, the filter is communicated with the immersion liquid box through a circulating pipe I, the circulating pipe I is connected with a heat exchanger, and the immersion liquid box is communicated with the wire drawing liquid pool through a return pipe; the cooling system is connected with the heat exchanger through a circulating pipe II; the filter is provided with at least one continuous filtering mechanism, and the continuous filtering mechanism is configured to trigger the continuous filtering mechanism to rotate to switch a new filtering structure when the water level in the filter rises. After the water-based aluminum wire drawing liquid is adopted, no smell is generated in the circulation process, and the surrounding environment of a machine table is clean and tidy. Meanwhile, after the aluminum powder is filtered and is drawn by a nano-mold, the lubricating property is good, and the surface of the aluminum wire is smooth and clean.

The heat management system comprises a heat pump unit for providing refrigerating capacity or heating capacity, a liquid circulation unit and a power distribution circulation unit. The liquid circulation unit comprises a liquid circulation pipeline, and a liquid pump, a cell heat exchange plate, a first tee joint, a second tee joint and a heat exchanger which are sequentially arranged on the liquid circulation pipeline. The liquid pump drives the heat adjusting medium to circulate in the liquid circulation pipeline. And the battery cell heat exchange plate exchanges heat with the battery cell. The liquid circulation pipeline forms a first passage between the first tee joint and the second tee joint. The heat exchanger exchanges heat with the heat pump unit. The power distribution circulation unit comprises a second path and a power distribution cabinet heat exchange plate arranged in the power distribution cabinet. The power distribution cabinet heat exchange plate is arranged on the second channel and comprises an input port communicated with the first tee joint and an output port communicated with the heat exchanger through a second tee joint. The first tee joint distributes the heat adjusting medium from the battery cell heat exchange plate to the second channel where the power distribution cabinet heat exchange plate is located and the first channel, and the heat adjusting medium flows to the heat exchanger through the second tee joint.

The invention relates to the technical field of industrial waste gas treatment, in particular to a waste gas treatment system and method based on wet desulphurization. The system comprises a waste gas pretreatment unit, a composite absorption reaction unit, a gas-liquid separation unit, an absorption liquid circulation system, an intelligent control system and a waste liquid treatment unit, wherein each unit is communicated with a shielding signal line through a corrosion-resistant pipeline to form a closed-loop operation system; industrial waste gas is subjected to pre-dedusting and cooling through the waste gas pretreatment unit and then enters the composite absorption reaction unit to be in countercurrent contact with a composite absorbent to achieve sulfur dioxide removal, a gas-liquid mixture obtained after reaction is separated through the gas-liquid separation unit, purified gas is directly discharged, and absorption liquid enters the absorption liquid circulation system to be recycled. And the saturated absorption liquid with the density of 1.15-1.25 g / cm < 3 > is conveyed to a waste liquid treatment unit for treatment. According to the invention, sulfur dioxide in waste gas can be efficiently removed through synergistic absorption and intelligent control, the operation cost is reduced, and equipment corrosion is reduced.

Systems and methods are provided for gas fired systems, such as boilers, hydronic systems, and other fuel powered heating systems which are capable detecting a fuel type being consumed by the system and adjusting operation of the system based on the fuel type detected. The gas fired or other heating systems may have a controller capable of a running a machine learning model trained to detect a fuel type based on operational data corresponding to the gas fired or other heating system. Once the type of fuel is determined, operation of the gas fired or other heating system may be adjusted according to the fuel type detected. For example, the system may be powered down, a gas valve may be adjusted to adjust fuel injected into the heat exchanger, or a fan (e.g., blower) speed (e.g., revolutions per minute) may be adjusted.

The utility model discloses polyethylene pipe extrusion equipment, relates to the technical field of polyethylene pipe production, and aims to improve the production efficiency of polyethylene pipes, prevent dust generated by cutting from entering air, maintain a good production environment and improve the production efficiency of the polyethylene pipes. According to the technical scheme, the polyethylene pipe extrusion equipment is characterized by comprising an extruder, a shaping part and a cutting part, the shaping part comprises a mold replacement structure and a cooling box, and the extruder comprises a bottom box, a motor base, an extrusion motor, a rotating shaft fixing column, a heating box and a feeding hopper; the mold replacement structure comprises a mold fixing seat, a mold pipe, a fixing plate, a springback rod and a stretching handle, the cooling box comprises a box body, a cooling inlet, a cooling outlet and a cooling liquid circulation opening, the cutting part comprises a fixing pipe, a cutting box and a bottom frame, and the cutting box comprises an outer box, a dust collection drawer and a cutting motor. The double-pipe type mold pipe adopted by the equipment can produce two polyethylene pipes at the same time, the mold can be replaced through the mold replacement structure, the production efficiency is improved, meanwhile, the production effect of the equipment on different types and sizes of the pipes is met, and the influence of dust on the environment is avoided during cutting.

The invention relates to a reusable propellant storage tank of a carrier rocket, and belongs to the technical field of liquid rocket propellant storage and management. The propellant storage box comprises a storage box body, and a lower-layer partition plate assembly, a middle-layer partition plate assembly and an upper-layer partition plate assembly which are arranged in a storage cavity of the storage box body, and the three layers of partition plate assemblies are of disc-shaped structures covering the cross section of the storage box. A first circulation area is arranged in the middle of the lower-layer partition plate assembly, a sealing plate and a second circulation area surrounding the sealing plate are arranged in the middle of the middle-layer partition plate assembly, a third circulation area is arranged in the middle of the upper-layer partition plate assembly, and the first circulation area, the second circulation area and the third circulation area are staggered in the radial direction, so that a nonlinear damping type liquid circulation path is formed in the storage tank. Therefore, violent shaking of the propellant in a weightlessness or variable acceleration environment is inhibited, and reliable restarting of the engine is guaranteed. According to the storage box, the structure is simple and reliable, the shaking restraining effect is remarkable, and the storage box is particularly suitable for propellant management of a reusable carrier rocket.

The application discloses a wastewater degradation device based on dielectric barrier discharge coupling optical waveguide catalysis, which comprises a reactor, a liquid circulating system and a power supply. The reactor is used for degrading and treating the wastewater delivered by the liquid circulating system. The reactor comprises a red copper rod, a ceramic medium and an outer tube. The red copper rod and the ceramic medium are arranged in the outer tube. The ceramic medium and the outer tube form a plasma discharge area. The upper end of the outer tube is provided with an upper cover. The upper cover and the outer tube form a liquid inlet channel. The liquid inlet channel is communicated with the plasma discharge area. The power supply is electrically connected with the reactor. The red copper rod is used for forming a high-voltage electric field in the plasma discharge area. When the wastewater passes through the plasma discharge area, active substances generated by dielectric barrier discharge can degrade the wastewater. The circulating liquid system is used for delivering the degraded wastewater into the reactor again for secondary degradation. Through the above device, the wastewater can be cyclically degraded and treated, and the degradation effect of the wastewater is improved.

A processing device includes a pump system, a valve system, a centrifuge, and a controller. A fluid flow circuit is mounted to the device to execute a procedure in which whole blood is processed into a red blood cell product, a plasma product, and a platelet concentrate product. The blood is first separated into red blood cells, buffy coat, and plasma using the centrifuge, with the red blood cells and plasma being removed from the centrifuge, while the buffy coat remains in the centrifuge. The fluid remaining in the centrifuge is circulated through the centrifuge to form a homogenous mixture. Once the mixture is formed, it is separated in the centrifuge into platelet concentrate and red blood cells. A platelet product is then collected by using whole blood or previously collected red blood cells to push the platelet concentrate from the centrifuge to a collection container.

The invention provides a magnetic suspension integrated energy-saving refrigeration compressor, and relates to the technical field of refrigeration equipment, the magnetic suspension integrated energy-saving refrigeration compressor comprises a main body assembly, and the two ends of the main body assembly are in threaded connection with volute assemblies; the two volute assemblies are connected through a gas-liquid circulation assembly, a magnetic suspension motor unit is installed in the main body assembly, an impeller assembly is in driving connection with the interior of the magnetic suspension motor unit, and a magnetic suspension control module and a motor monitoring module are installed on the two side walls of the main body assembly respectively. Full magnetic suspension supporting is adopted, mechanical friction is avoided, energy is saved, consumption is reduced, the service life of a unit is prolonged, and operation noise is reduced. The integrated structure is matched with the sealing piece, gas and liquid leakage is prevented, gas circuit and system circulation is optimized, and the refrigeration energy efficiency is improved. The stable and efficient operation of the compressor is guaranteed through the wear resistance of the impeller and real-time monitoring and regulation of the intelligent module.

The invention discloses a hydrogen production alkali liquor circulation system adapting to wind and light fluctuation and a control method of the hydrogen production alkali liquor circulation system, and solves the problems that in the prior art, an alkali liquor circulation path of an alkali liquor circulation system is fixed, the adjusting capacity is limited, and a dynamic buffering and quick response mechanism is lacked. The separator is connected with an alkali liquor circulating pump, the alkali liquor circulating pump is connected with an inlet of the electrolytic cell, the alkali liquor circulating pump is connected with an alkali liquor circulating buffer tank, an automatic regulating valve is arranged between the alkali liquor circulating pump and the alkali liquor circulating buffer tank, and a flowmeter A is arranged between the separator and the alkali liquor circulating pump. A flow meter B is arranged between the alkali liquor circulating pump and the electrolytic bath, the alkali liquor circulating pump is connected with a frequency conversion control system, and the frequency conversion control system adjusts the operation frequency of the alkali liquor circulating pump according to a current signal of the electrolytic bath. The alkali liquor circulation flow is adjusted through current signal adjustment and a frequency conversion control strategy, and the response speed and stability of the system are improved.

The invention discloses a dynamic evaluation system and method for adhesiveness of natural gravel asphalt, and relates to the field of road engineering analysis. The simulation chamber is integrated with a temperature control system which is used for changing the internal temperature of the simulation chamber; the solution system comprises a conveying unit for multiple kinds of liquid, the conveying unit can convey one kind of liquid into the simulation cavity at a time, and liquid circulation is formed between the conveying unit and the simulation cavity; the dynamic loading system is used for loading a sample through a loading head and can carry out dynamic rigidity measurement; the image acquisition and analysis system is used for acquiring a sample image and obtaining the adhesion area ratio of asphalt according to the sample image; and the evaluation system is used for evaluating the adhesiveness according to the combination of the dynamic stiffness measurement result and the adhesion area ratio. By adopting the scheme, the dynamic coupling effect of complex environmental factors of an actual road surface can be simulated, so that the real-time quantitative evaluation of the adhesion decay process is realized.

The invention discloses a method, a system, a medium and equipment for predicting hydrogen in oxygen of an alkaline electrolysis system, and the method comprises the steps: obtaining a total calculation formula for predicting hydrogen in oxygen of the alkaline electrolysis system based on the contribution of dissolved hydrogen which is not separated by a gas-liquid separator, gaseous hydrogen which is not separated by the gas-liquid separator, electrolytic bath saturation diffusion and electrolytic bath supersaturation diffusion mechanisms to hydrogen in oxygen of the system; according to experimental data of the alkaline electrolysis system under different alkaline liquid circulation flow working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different system pressure working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different working current working conditions, calibrating a to-be-fitted coefficient; according to experimental data of the alkaline electrolysis system under different temperature working conditions, a to-be-fitted coefficient sum is calibrated; and inputting temperature, pressure, alkali liquor circulation flow and current experiment data of the alkaline electrolysis system, and calculating hydrogen in oxygen of the alkaline electrolysis system so as to output system HTO under different operation conditions in real time.

The invention discloses an intelligent test system and method for dust wettability by a natural sedimentation method, and relates to the technical field of dust wettability testing, the system comprises a liquid storage and preparation subsystem, a dust loading and sedimentation subsystem, a liquid circulation and waste liquid treatment subsystem, and a data acquisition and environmental parameter regulation and control feedback subsystem; inputting the prepared target solution into a settling chamber, selecting a spray dust falling or dust infiltration settling mode, testing the wettability of the dust under different temperature, concentration and pH conditions, naturally putting the dust into the settling chamber by adopting an air compression pump and a porous plate, capturing the settling state of the dust at any time through a laser sensor and a high-speed camera lens, and finishing settling to obtain the target solution. And the waste liquid is filtered. The system provides a full-automatic and high-precision solution for dust wettability testing, integrates the functions of environmental parameter regulation and control, dynamic monitoring and waste liquid treatment, is suitable for dust suppressant performance evaluation and dust wetting mechanism research in the fields of mines, environmental protection and the like, and realizes precise regulation and control of dust suppressant preparation.

The invention provides a control method for a cooling liquid circulation system and electronic equipment, and can be applied to the technical field of liquid cooling heat dissipation system control. The control method comprises the steps that target performance parameters of cooling liquid are obtained; processing the target performance parameters by using the change trend of the historical performance parameters of the cooling liquid to obtain the change trends of the concentration predicted value, the conductivity predicted value and the temperature predicted value of the antifreezing agent; determining the predicted replacement time of the cooling liquid according to the association relationship among the target performance parameter, the change trend and the remaining use time of the cooling liquid; according to the predicted replacement time, determining at least one target deviation from a plurality of candidate deviations of the target antifreezing agent concentration, the target conductivity and the target temperature relative to corresponding preset reference values; and weighting the pump speed compensation parameter corresponding to the at least one target deviation, generating an adjusting instruction for the pump speed of the circulating pump, and executing the adjusting instruction to adjust the pump speed of the circulating pump.

The invention relates to the technical field of semiconductor packaging and micromachining, in particular to a defect-free electroplating filling method and system for a high-aspect-ratio glass through hole. The method comprises the following steps: preparing an ultrathin and compact copper seed composite layer with strong binding force on the inner wall of a glass through hole by adopting an atomic layer deposition (ALD) technology; preparing an electroplating solution containing a specific additive system; and implementing a segmented pulse electroplating strategy, and realizing defect-free copper filling from the bottom to the top of the through hole by regulating and controlling the current density, the pulse width and the intermittent time in stages and combining a reverse pulse technology. The system integrates ALD deposition, pulse electroplating and an electroplating liquid circulation system, and high precision and high yield in the filling process are ensured. The method effectively solves the problems of insufficient seed layer coverage, limited mass transfer, cavity / suture defects and the like in the filling of the glass through hole with the high depth-diameter ratio (greater than or equal to 20: 1), and is suitable for advanced packaging and manufacturing of large-size glass substrates (such as 510mm * 515mm).

The utility model discloses a centerless grinding machine with a cooling liquid circulating mechanism, which relates to the technical field of machining equipment and comprises a machine body, a control cabinet is fixedly connected to the left side of the machine body, and a guide wheel is fixedly connected to the right side of the top end of the machine body. According to the centerless grinding machine with the cooling liquid circulating mechanism, through the arrangement of the first centrifugal pump, the cooling box, the booster pump and the liquid spraying nozzle, when the centerless grinding machine is used, cooling liquid is sprayed out of the liquid spraying nozzle, high-temperature deformation of workpieces is prevented, the sprayed cooling liquid is gathered downwards and falls into the water receiving pipe, and the cooling liquid is pumped into the cooling box through the first centrifugal pump after being filtered in the filtering box; and finally, the heated cooling liquid is cooled again through cooling inside the cooling box and heat dissipation outside the fan, the cooled cooling liquid is pumped into the sterilization box through the second centrifugal pump, the filtered and cooled cooling liquid in the sterilization box is pumped into the booster pump through the liquid pumping pipe again during next grinding, the cooling liquid is sprayed out downwards from the liquid spraying nozzle, and circulation is repeated.

The invention discloses an immersed energy storage liquid level tide control system based on gravity self-adjustment, which relates to the technical field of energy storage and comprises a liquid storage module, a reserve liquid releasing module during thermal runaway, an immersion execution module, a multi-stage reserve liquid guiding module, a local hot spot eliminating module, a liquid path communication module, a rapid liquid supplementing module, a dynamic control module and a switching control module. The control module controls the liquid storage module. Through a gravity self-adjusting mechanism, thermal runaway is quickly responded, liquid level rising, phase change heat absorption, electrode dilution and condensation recovery are achieved, thermal runaway spreading is effectively restrained, after-combustion is blocked, the system operates autonomously, external energy or mechanical parts are not needed, reliability is high, meanwhile, liquid cyclic utilization and dynamic liquid level adjustment are adopted, resource use is optimized, and the energy consumption is reduced. And the multi-stage diversion structure and the flexible liquid level-temperature mapping model enhance the adaptability of the system to complex working conditions, and improve the overall safety and operation efficiency of the battery system.

The invention provides a wave energy converter system comprising:—at least two actuators (2) comprising each a buoy (3) and a liquid pump (4) mechanically connected to the buoy (3) to be driven by the buoy movements, and—an electric generator (7) mechanically connected to an hydraulic motor (6) fluidically connected to each liquid pump (4), for converting a motion of the buoys (3) into electrical power, the wave energy converter system being characterized in that it comprises a closed liquid loop system (30) configured to fluidically connect the pumps (4) of different actuators (2) together, by passing through the hydraulic motor (6), wherein the liquid is constrained to flow from the pumps (4) through the hydraulic motor (6), and wherein the liquid is constrained to flow from the hydraulic motor (6) to the pumps (4) In particular, when a first one of the buoys (3) exerts a force on its associated liquid pump (4) that is greater than the force exerted by a second buoy (3), the liquid in the pump chamber of liquid pump (4) linked to the first buoy is directed to the pump chamber of the liquid pump (4) linked to the second buoy (3), through the closed liquid loop system (30) and the hydraulic motor (6). Thus, the liquid moves through the closed liquid loop system (30) and produces electricity via a generator (7) driven by a hydraulic motor (6) as soon as there is a difference of forces between the buoys (3) of different actuators (2). Different forces are produced when different buoys are in a different phase of a wave (9).

The invention belongs to the technical field of wet dust removal devices, and particularly relates to a turbulence-enhanced efficient energy-saving wet dust removal device, and a Venturi condensation unit comprises a shrinkage pipe, an adjustable throat pipe and a diffusion pipe which are connected in sequence; the turbulent flow mixing and strengthening unit is connected between an outlet of the diffusion pipe and an inlet of the fiber grid condensation and filtration unit, and a static turbulent flow generator is arranged in the turbulent flow mixing and strengthening unit and used for enabling gas-liquid-solid multiphase flow from the Venturi condensation unit to generate rotation and turbulent flow; the fiber grid coagulation filtering unit comprises a shell and at least one layer of fiber grid plate arranged in the shell; the washing liquid circulation assembly comprises a liquid storage tank, a water pump and a first connecting pipeline and is used for conveying washing liquid in the liquid storage tank to the atomizing nozzles and the liquid distribution device. The system has the advantages of low-resistance operation, self-cleaning capability, intelligent adjustment and high system integration degree.

The present application relates to the field of liquid cooling for electronic devices, and more specifically to a liquid cooling unit, apparatus and method. Specifically, the liquid cooling unit comprises a liquid-cooled device node, a cooling liquid circulation system, and a refrigeration system, and further comprises a chassis; the liquid-cooled device node is mounted inside the chassis; the cooling liquid circulation system comprises a main liquid inlet pipe, branch liquid inlet pipes, a liquid return pipe, a liquid driving device, and a liquid storage container; one end of each branch liquid inlet pipe is connected to one end of the main liquid inlet pipe; one end of the liquid return pipe is connected to a liquid return port in the lower end of the chassis, the other end of the liquid return pipe is connected to the liquid storage container, and the liquid storage container is further connected to the main liquid inlet pipe; the liquid driving device is arranged on the main liquid inlet pipe or the liquid return pipe; the liquid storage container is connected to the refrigeration system; upon completion of heat exchange, cooling liquid flows out through a node liquid return port and accumulates at the bottom of the chassis, and the bottom of the chassis is an extended structure capable of storing liquid. The present application provides cooling for liquid-cooled devices, and mitigates the problems of an excessively slow cooling liquid return flow rate and excessively high pipeline maintenance costs.

The application discloses a kind of semiconductor equipment liquid leakage diagnostic system and method, it belongs to semiconductor equipment technical field, the semiconductor equipment liquid leakage diagnostic system includes cooling machine, equipment to be cooled and controller, cooling machine with the equipment to be cooled between being equipped with liquid supply pipeline and back liquid pipeline, both ends in the liquid supply pipeline and the back liquid pipeline are equipped with liquid leakage detection device, the liquid leakage detection device with the controller electric connection, the controller with the cooling machine electric connection, the application is by adopting the combination architecture of cooling machine, equipment to be cooled and controller, both ends of liquid supply pipeline and back liquid pipeline are provided with liquid leakage detection device, and make liquid leakage detection device and controller electric connection, controller and cooling machine electric connection, realized to cooling liquid circulation loop Full-coverage liquid leakage monitoring, completely eliminates the monitoring blind area existing in single detection point, substantially improves the safety and reliability of semiconductor equipment cooling system operation.

The utility model provides a packaging box hot press forming device for food processing, which relates to the technical field of plastic packaging box processing and comprises a bottom support, the top end of the bottom support is connected with a supporting plate, and the bottom end of the supporting plate is fixedly connected with a top cooling component; a uniform cooling assembly; the uniform cooling assembly comprises a water pump fixedly connected to the bottom support, the output end of the water pump is fixedly connected with a water conveying pipe, the end, away from the water pump, of the water conveying pipe is fixedly connected with a fixed mold box, and a cooling cavity is formed in the fixed mold box. By means of the design, efficient heat absorption and dissipation are achieved, it is ensured that the whole packaging box body and the movable module can be evenly and stably cooled, a large amount of heat is absorbed and circulated through the cooling liquid circulation system and the cooling cavity, and then through the heat dissipation design that the top cooling assembly is combined with the fins, the heat dissipation plate and the condensation pieces, the heat dissipation efficiency is improved. And heat can be distributed more uniformly, so that the problem of insufficient heat dissipation of the top due to the fact that the heat conduction pipe can only cool on the side surface is avoided.

The present disclosure relates to a geothermal carbon capture system, comprising; a primary liquid circuit circulating liquid into a geothermal well and returning heated liquid from a well head of the geothermal well, the primary liquid circuit passing through a condenser; a turbine driven by the heated liquid to power a compressor configured to draw in and compresses ambient air to feed a first compressed air supply and a second compressed air supply, wherein the first compressed air supply is directed to a separator to extract carbon dioxide therefrom; and the second compressed air supply drives a pump to force the carbon dioxide extracted from the separator towards a reinjection well for reinjection into geology surrounding the reinjection well.

The utility model discloses a tanning waste liquid circulation deashing softening device, including bottom plate, rear water pump, front water pump and motor, the upper surface of bottom plate is fixed in proper order with front box, purification barrel and rear box, and the rear water pump is installed at the upper end of rear box end face, and the inner wall of the upper end of front box is movably connected with cutting sleeve, and the cutting sleeve is connected with the motor. A front water pump is installed at the edge of the upper surface of the purification barrel and connected with the front box through a water inlet pipe, a gear ring is installed on the inner wall of the purification barrel on the side of a gear, a stirring rod is fixedly arranged on the inner wall of the gear ring, a feeding pipe is fixed to the surface of the purification barrel on the side of a motor in a penetrating mode, and the outer wall of the upper end of the feeding pipe is sleeved with an end cover; a baffle ring is fixedly connected to the outer wall of the liquid discharging pipe, and a sealing gasket is bonded to the lower surface of the baffle ring. According to the waste liquid circulating deliming and softening device for tanning, the filter bag is convenient to disassemble for cleaning, so that the influence on work of the device due to blockage of the filter bag is avoided, and the practicability of the device is improved.

The utility model discloses a water electrolysis hydrogen production system, and relates to the technical field of water electrolysis hydrogen production, the water electrolysis hydrogen production system comprises a liquid circulation flow path, and the liquid circulation flow path comprises a gas-liquid separator, a circulation pump and an electrolytic bath which are sequentially distributed in the direction from upstream to downstream; the water electrolysis hydrogen production system further comprises a backflow branch, the liquid inlet end of the backflow branch is connected into the liquid circulation flow path between the circulation pump and the electrolytic bath, the liquid outlet end of the backflow branch is connected into the liquid circulation flow path on the upstream of the circulation pump, and the backflow branch is provided with a first valve. The first valve member has an opening pressure. According to the technical scheme, the circulating pump is prevented from working below the minimum working flow.

An air supply system includes an air pump assembly to generate compressed air, a liquid circulation pipe to circulate a cooling liquid, a sensor, and a programmable control board. The air pump assembly includes an outer sealed box enclosing an inner sealed box, which further encloses air pump machinery. A first set of springs are disposed between the air pump machinery and the inner sealed box and a second set of springs are disposed between the outer sealed box and the inner sealed box. The liquid circulation pipe connects the air pump machinery to liquid cooling components outside the outer sealed box. The sensor is coupled to an output of the air pump assembly to measure a characteristic of the compressed air during operation. The programmable control board controls the speed of a motor in the air pump machinery according to program instructions and measurements of the sensor.

The utility model relates to the field of charging pile structures, in particular to a modularized quick charging pile structure based on liquid cooling heat dissipation, which comprises a shell, a placement box and a liquid supply box, a placement box used for liquid cooling heat dissipation of the shell is arranged on one side of the inner side of the shell, and a liquid supply box used for supplying cooling liquid is arranged on one side of the outer portion of the shell; cooling liquid circulates through the connecting pipe in the containing box to take away heat and then enters the liquid supply box, the temperature is reduced through the cooler in the liquid supply box, the method is repeated, a large amount of heat generated by the charging pile in the charging process can be rapidly taken away, and compared with a traditional air cooling heat dissipation mode, the heat dissipation efficiency is higher, and the service life of the charging pile is prolonged. Therefore, the working temperature of the electronic components in the charging pile can be maintained in a reasonable range, and the performance reduction, the service life shortening and even the damage of the components caused by overheating are avoided, so that the stable and efficient operation of the charging pile is ensured.